"I should find a way to kill him, even if I had to descend to the dagger or poison."

I laughed. "I hope, for John Carter's sake, that you do not recognize him when you meet him."

"I shall know him all right," she said. "His white skin will betray him."

"Well, let us hope that he escapes you," I said laughingly, as I bade her good night and went to my sleeping silks and furs.

The next morning, immediately after breakfast, Fal Sivas sent for me. As I entered his study, I saw Hamas and two slaves standing near him.

Fal Sivas looked up at me from beneath lowering brows. He did not greet me pleasantly as was his wont.

"Well," he snapped, "did you destroy Rapas last night?"

"No," I replied; "I did not."

"Did you see him?"

"Yes, I saw him and talked with him. In fact, I ate the evening meal with him."

I could see that this admission surprised both Fal Sivas and Hamas. It was evident that it rather upset their calculations, for I judged that they had expected me to deny having seen Rapas, which I might have done had it not been for the fortunate circumstance that had permitted me to discover Hamas spying upon me.

"Why didn't you kill him?" demanded Fal Sivas. "Did I not order you to do so?"

"You employed me to protect you, Fal Sivas," I replied; "and you must rely upon my judgment to do it in my own way. I am neither a child nor a slave. I believe that Rapas has made connections that will be far more harmful to you than Rapas, himself; and by permitting him to live and keeping in touch with him, I shall be able to learn much that will be to your advantage that I could never learn if I destroyed Rapas. If you are not satisfied with my methods, get someone else to protect you; and if you have decided to destroy me, I suggest that you enlist some warriors. These slaves would be no match for me."

I could see Hamas trembling with suppressed rage at that, but he did not dare say anything or do anything until Fal Sivas gave him the word. He just stood there fingering the hilt of his sword and watching Fal Sivas questioningly, as though he awaited a signal.

But Fal Sivas gave him no signal. Instead, the old inventor sat there studying me intently for several minutes. At last he sighed and shook his head. "You are a very courageous man, Vandor," he said; "but perhaps a little overconfident and foolish. No one speaks to Fal Sivas like that. They are all afraid. Do you not realize that I have it within my power to destroy you at any moment?"

"If you were a fool, Fal Sivas, I might expect death this moment; but you are no fool. You know that I can serve you better alive than dead, and perhaps you also suspect what I know-that if I went out I should not go alone. You would go with me."

Hamas looked horrified and grasped the hilt of his sword firmly, as though about to draw it; but Fal Sivas leaned back in his chair and smiled.

"You are quite right, Vandor," he said; "and you may rest assured that if I ever decide that you must die, I shall not be within reach of your sword when that sad event occurs. And now tell me what you expect to learn from Rapas and what makes you believe that he has information that will be of value to me?"

"That will be for your ears, alone, Fal Sivas," I said, glancing at Hamas and the two slaves.

Fal Sivas nodded to them. "You may go," he said.

"But, master," objected Hamas, "you will be left alone with this man. He may kill you."

"I shall be no safer from his sword if you are present, Hamas," replied the master. "I have seen and you have seen how deftly he wields his blade."

Hamas's red skin darkened at that; and without another word he left the room, followed by the two slaves.

"And now," said Fal Sivas, "tell me what you have learned or what you suspect."

"I have reason to believe," I replied, "that Rapas has made connections with Ur Jan. Ur Jan, as you have told me, has been employed by Gar Nal to assassinate you. By keeping in touch with Rapas, it is possible that I may be able to learn some of Ur Jan's plans. I do not know of course, but it is the only contact we have with the assassins, and it would be poor strategy to destroy it."

"You are absolutely right, Vandor," he replied. "Contact Rapas as often as you can, and do not destroy him until he can be of no more value to us. Then-" his face was contorted by a fiendish grimace.

"I thought that you would concur in my judgment," I replied. "I am particularly anxious to see Rapas again tonight."

"Very well," he said, "and now let us go to the shop. The work on the new motor is progressing nicely, but I want you to check over what has been done."

Together we went to the shop; and after inspecting the work, I told Fal Sivas that I wanted to go to the motor room of the ship to take some measurements.

He accompanied me, and together we entered the hull. When I had completed my investigation I sought an excuse to remain longer in the hangar, as there was half-formed in my mind a plan that would necessitate more intimate knowledge of the room in the event that I found it necessary or feasible to carry out my designs.

In pretended admiration of the ship, I walked all around it, viewing it from every angle; and at the same time viewing the hangar from every angle. My particular attention was riveted upon the great doorway through which the ship was to eventually pass out of the building. I saw how the doors were constructed and how they were secured; and when I had done that, I lost interest in the ship for the time being at least.

I spent the balance of the day in the shop with the mechanics, and that night found me again in the eating-place on the Avenue of Warriors.

Rapas was not there. I ordered my meal and had nearly finished it, though I was eating very slowly; and still he had not come. Still I loitered on, as I was very anxious to see him tonight.

But at last, when I had about given him up, he came.

It was evident that he was very nervous, and he appeared even more sly and furtive than ordinarily.

"Kaor!" I said, as he approached the table; "you are late tonight."

"Yes," he said; "I was detained."

He ordered his meal and fidgeted about, uneasily.

"Did you reach home last night all right?" he said.

"Why, yes, of course."

"I was a little bit worried about you," he said. "I heard that a man was killed on the very avenue through which you must have passed."

"Is that so?" I exclaimed. "It must have happened after I had passed by."

"It is very strange," he said; "it was one of Ur Jan's assassins, and again he had the mark of John Carter upon his breast."

He was eyeing me very suspiciously, but I could see that he was afraid even to voice what was in his mind. In fact, I think it frightened him even to entertain the thought.

"Ur Jan is certain now that John Carter, himself, is in the city."

"Well," I said, "why be so upset about it? I am sure that it does not concern either you or me."